/*++

Copyright (c)  1999  - 2014, Intel Corporation. All rights reserved

  SPDX-License-Identifier: BSD-2-Clause-Patent



Module Name:

  INTELGFX.ASL

Abstract:

  IGD OpRegion/Software ACPI Reference Code for the Baytrail Family.

--*/

// Enable/Disable Output Switching.  In WIN2K/WINXP, _DOS = 0 will
// get called during initialization to prepare for an ACPI Display
// Switch Event.  During an ACPI Display Switch, the OS will call
// _DOS = 2 immediately after a Notify=0x80 to temporarily disable
// all Display Switching.  After ACPI Display Switching is complete,
// the OS will call _DOS = 0 to re-enable ACPI Display Switching.

Method(_DOS,1)
{
  // Store Display Switching and LCD brightness BIOS control bit
  Store(And(Arg0,7),DSEN)
}

// Enumerate the Display Environment.  This method will return
// valid addresses for all display device encoders present in the
// system.  The Miniport Driver will reject the addresses for every
// encoder that does not have an attached display device.  After
// enumeration is complete, the OS will call the _DGS methods
// during a display switch only for the addresses accepted by the
// Miniport Driver.  For hot-insertion and removal of display
// devices, a re-enumeration notification will be required so the
// address of the newly present display device will be accepted by
// the Miniport Driver.

Method(_DOD, 0, Serialized)
{
  Store(0, NDID)
  If(LNotEqual(DIDL, Zero))
  {
    Store(SDDL(DIDL),DID1)
  }
  If(LNotEqual(DDL2, Zero))
  {
    Store(SDDL(DDL2),DID2)
  }
  If(LNotEqual(DDL3, Zero))
  {
    Store(SDDL(DDL3),DID3)
  }
  If(LNotEqual(DDL4, Zero))
  {
    Store(SDDL(DDL4),DID4)
  }
  If(LNotEqual(DDL5, Zero))
  {
    Store(SDDL(DDL5),DID5)
  }

  // TODO - This level of flexibility is not needed for a true
  //      OEM design.  Simply determine the greatest number of
  //      encoders the platform will suppport then remove all
  //      return packages beyond that value.  Note that for
  //      current silicon, the maximum number of encoders
  //      possible is 5.

  If(LEqual(NDID,1))
  {
    If (LNOTEqual (ISPD, 0))
    {
      Name(TMP0,Package() {0xFFFFFFFF,0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP0,0))
      //Add ISP device to GFX0
      Store(0x00020F38, Index(TMP0,1))
      Return(TMP0)
    } Else
    {
      Name(TMP1,Package() {0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP1,0))
      Return(TMP1)
    }
  }

  If(LEqual(NDID,2))
  {
    If (LNOTEqual (ISPD, 0))
    {
      Name(TMP2,Package() {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP2,0))
      Store(Or(0x10000,DID2),Index(TMP2,1))
      //Add ISP device to GFX0
      Store(0x00020F38, Index(TMP2,2))
      Return(TMP2)
    } Else
    {
      Name(TMP3,Package() {0xFFFFFFFF, 0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP3,0))
      Store(Or(0x10000,DID2),Index(TMP3,1))
      Return(TMP3)
    }
  }

  If(LEqual(NDID,3))
  {
    If (LNOTEqual (ISPD, 0))
    {
      Name(TMP4,Package() {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF,0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP4,0))
      Store(Or(0x10000,DID2),Index(TMP4,1))
      Store(Or(0x10000,DID3),Index(TMP4,2))
      //Add ISP device to GFX0
      Store(0x00020F38, Index(TMP4,3))
      Return(TMP4)
    } Else
    {
      Name(TMP5,Package() {0xFFFFFFFF, 0xFFFFFFFF,0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP5,0))
      Store(Or(0x10000,DID2),Index(TMP5,1))
      Store(Or(0x10000,DID3),Index(TMP5,2))
      Return(TMP5)
    }
  }

  If(LEqual(NDID,4))
  {
    If (LNOTEqual (ISPD, 0))
    {
      Name(TMP6,Package() {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP6,0))
      Store(Or(0x10000,DID2),Index(TMP6,1))
      Store(Or(0x10000,DID3),Index(TMP6,2))
      Store(Or(0x10000,DID4),Index(TMP6,3))
      //Add ISP device to GFX0
      Store(0x00020F38, Index(TMP6,4))
      Return(TMP6)
    } Else
    {
      Name(TMP7,Package() {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP7,0))
      Store(Or(0x10000,DID2),Index(TMP7,1))
      Store(Or(0x10000,DID3),Index(TMP7,2))
      Store(Or(0x10000,DID4),Index(TMP7,3))
      Return(TMP7)
    }
  }

  If(LGreater(NDID,4))
  {
    If (LNOTEqual (ISPD, 0))
    {
      Name(TMP8,Package() {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP8,0))
      Store(Or(0x10000,DID2),Index(TMP8,1))
      Store(Or(0x10000,DID3),Index(TMP8,2))
      Store(Or(0x10000,DID4),Index(TMP8,3))
      Store(Or(0x10000,DID5),Index(TMP8,4))
      //Add ISP device to GFX0
      Store(0x00020F38, Index(TMP8,5))
      Return(TMP8)
    } Else
    {
      Name(TMP9,Package() {0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF, 0xFFFFFFFF})
      Store(Or(0x10000,DID1),Index(TMP9,0))
      Store(Or(0x10000,DID2),Index(TMP9,1))
      Store(Or(0x10000,DID3),Index(TMP9,2))
      Store(Or(0x10000,DID4),Index(TMP9,3))
      Store(Or(0x10000,DID5),Index(TMP9,4))
      Return(TMP9)
    }
  }

  // If nothing else, return Unknown LFP.
  // (Prevents compiler warning.)

  //Add ISP device to GFX0
  If (LNOTEqual (ISPD, 0))
  {
    Return(Package() {0x00000400, 0x00020F38})
  } Else
  {
    Return(Package() {0x00000400})
  }
}

Device(DD01)
{

  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(And(0x0F00,DID1),0x400))
    {
      Store(0x1, EDPV)
      Store(DID1, DIDX)
      Return(1)
    }
    If(LEqual(DID1,0))
    {
      Return(1)
    }
    Else
    {
      Return(And(0xFFFF,DID1))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    Return(CDDS(DID1))
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    Return(NDDS(DID1))
  }

  // Device Set State.

  // _DSS Table:
  //
  //      BIT31   BIT30   Execution
  //      0       0       Don't implement.
  //      0       1       Cache change.  Nothing to Implement.
  //      1       0       Don't Implement.
  //      1       1       Display Switch Complete.  Implement.

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {

      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.

      Store(NSTE,CSTE)
    }
  }
}

Device(DD02)
{

  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(And(0x0F00,DID2),0x400))
    {
      Store(0x2, EDPV)
      Store(DID2, DIDX)
      Return(2)
    }
    If(LEqual(DID2,0))
    {
      Return(2)
    }
    Else
    {
      Return(And(0xFFFF,DID2))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    Return(CDDS(DID2))
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    // Return the Next State.
    Return(NDDS(DID2))
  }

  // Device Set State. (See table above.)

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {

      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.

      Store(NSTE,CSTE)
    }
  }
}

Device(DD03)
{

  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(And(0x0F00,DID3),0x400))
    {
      Store(0x3, EDPV)
      Store(DID3, DIDX)
      Return(3)
    }
    If(LEqual(DID3,0))
    {
      Return(3)
    }
    Else
    {
      Return(And(0xFFFF,DID3))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    If(LEqual(DID3,0))
    {
      Return(0x0B)
    }
    Else
    {
      Return(CDDS(DID3))
    }
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    Return(NDDS(DID3))
  }

  // Device Set State. (See table above.)

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {
      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.

      Store(NSTE,CSTE)
    }
  }
}

Device(DD04)
{

  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(And(0x0F00,DID4),0x400))
    {
      Store(0x4, EDPV)
      Store(DID4, DIDX)
      Return(4)
    }
    If(LEqual(DID4,0))
    {
      Return(4)
    }
    Else
    {
      Return(And(0xFFFF,DID4))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    If(LEqual(DID4,0))
    {
      Return(0x0B)
    }
    Else
    {
      Return(CDDS(DID4))
    }
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    Return(NDDS(DID4))
  }

  // Device Set State. (See table above.)

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {

      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.

      Store(NSTE,CSTE)
    }
  }
}


Device(DD05)
{

  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(And(0x0F00,DID5),0x400))
    {
      Store(0x5, EDPV)
      Store(DID5, DIDX)
      Return(5)
    }
    If(LEqual(DID5,0))
    {
      Return(5)
    }
    Else
    {
      Return(And(0xFFFF,DID5))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    If(LEqual(DID5,0))
    {
      Return(0x0B)
    }
    Else
    {
      Return(CDDS(DID5))
    }
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    Return(NDDS(DID5))
  }

  // Device Set State. (See table above.)

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {
      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.

      Store(NSTE,CSTE)
    }
  }
}


Device(DD06)
{

  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(And(0x0F00,DID6),0x400))
    {
      Store(0x6, EDPV)
      Store(DID6, DIDX)
      Return(6)
    }
    If(LEqual(DID6,0))
    {
      Return(6)
    }
    Else
    {
      Return(And(0xFFFF,DID6))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    If(LEqual(DID6,0))
    {
      Return(0x0B)
    }
    Else
    {
      Return(CDDS(DID6))
    }
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    Return(NDDS(DID6))
  }

  // Device Set State. (See table above.)

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {
      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.

      Store(NSTE,CSTE)
    }
  }
}


Device(DD07)
{

  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(And(0x0F00,DID7),0x400))
    {
      Store(0x7, EDPV)
      Store(DID7, DIDX)
      Return(7)
    }
    If(LEqual(DID7,0))
    {
      Return(7)
    }
    Else
    {
      Return(And(0xFFFF,DID7))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    If(LEqual(DID7,0))
    {
      Return(0x0B)
    }
    Else
    {
      Return(CDDS(DID7))
    }
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    Return(NDDS(DID7))
  }

  // Device Set State. (See table above.)

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {
      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.

      Store(NSTE,CSTE)
    }
  }
}


Device(DD08)
{

  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(And(0x0F00,DID8),0x400))
    {
      Store(0x8, EDPV)
      Store(DID8, DIDX)
      Return(8)
    }
    If(LEqual(DID8,0))
    {
      Return(8)
    }
    Else
    {
      Return(And(0xFFFF,DID8))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    If(LEqual(DID8,0))
    {
      Return(0x0B)
    }
    Else
    {
      Return(CDDS(DID8))
    }
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    Return(NDDS(DID8))
  }

  // Device Set State. (See table above.)

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {
      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.

      Store(NSTE,CSTE)
    }
  }
}

//device for eDP
Device(DD1F)
{
  // Return Unique ID.

  Method(_ADR,0,Serialized)
  {
    If(LEqual(EDPV, 0x0))
    {
      Return(0x1F)
    }
    Else
    {
      Return(And(0xFFFF,DIDX))
    }
  }

  // Return the Current Status.

  Method(_DCS,0)
  {
    If(LEqual(EDPV, 0x0))
    {
      Return(0x00)
    }
    Else
    {
      Return(CDDS(DIDX))
    }
  }

  // Query Graphics State (active or inactive).

  Method(_DGS,0)
  {
    Return(NDDS(DIDX))
  }

  // Device Set State. (See table above.)

  Method(_DSS,1)
  {
    If(LEqual(And(Arg0,0xC0000000),0xC0000000))
    {
      // State change was performed by the
      // Video Drivers.  Simply update the
      // New State.
      Store(NSTE,CSTE)
    }
  }
  // Query List of Brightness Control Levels Supported.

  Method(_BCL,0)
  {
    // List of supported brightness levels in the following sequence.

    // Level when machine has full power.
    // Level when machine is on batteries.
    // Other supported levels.
    Return(Package() {80, 50, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100})
  }

  // Set the Brightness Level.

  Method (_BCM,1)
  {
    // Set the requested level if it is between 0 and 100%.

    If(LAnd(LGreaterEqual(Arg0,0),LLessEqual(Arg0,100)))
    {
      \_SB.PCI0.GFX0.AINT(1, Arg0)
      Store(Arg0,BRTL)  // Store Brightness Level.
    }
  }

  // Brightness Query Current level.

  Method (_BQC,0)
  {
    Return(BRTL)
  }
}

Method(SDDL,1)
{
  Increment(NDID)
  Store(And(Arg0,0xF0F),Local0)
  Or(0x80000000,Local0, Local1)
  If(LEqual(DIDL,Local0))
  {
    Return(Local1)
  }
  If(LEqual(DDL2,Local0))
  {
    Return(Local1)
  }
  If(LEqual(DDL3,Local0))
  {
    Return(Local1)
  }
  If(LEqual(DDL4,Local0))
  {
    Return(Local1)
  }
  If(LEqual(DDL5,Local0))
  {
    Return(Local1)
  }
  If(LEqual(DDL6,Local0))
  {
    Return(Local1)
  }
  If(LEqual(DDL7,Local0))
  {
    Return(Local1)
  }
  If(LEqual(DDL8,Local0))
  {
    Return(Local1)
  }
  Return(0)
}

Method(CDDS,1)
{
  Store(And(Arg0,0xF0F),Local0)

  If(LEqual(0, Local0))
  {
    Return(0x1D)
  }
  If(LEqual(CADL, Local0))
  {
    Return(0x1F)
  }
  If(LEqual(CAL2, Local0))
  {
    Return(0x1F)
  }
  If(LEqual(CAL3, Local0))
  {
    Return(0x1F)
  }
  If(LEqual(CAL4, Local0))
  {
    Return(0x1F)
  }
  If(LEqual(CAL5, Local0))
  {
    Return(0x1F)
  }
  If(LEqual(CAL6, Local0))
  {
    Return(0x1F)
  }
  If(LEqual(CAL7, Local0))
  {
    Return(0x1F)
  }
  If(LEqual(CAL8, Local0))
  {
    Return(0x1F)
  }
  Return(0x1D)
}

Method(NDDS,1)
{
  Store(And(Arg0,0xF0F),Local0)

  If(LEqual(0, Local0))
  {
    Return(0)
  }
  If(LEqual(NADL, Local0))
  {
    Return(1)
  }
  If(LEqual(NDL2, Local0))
  {
    Return(1)
  }
  If(LEqual(NDL3, Local0))
  {
    Return(1)
  }
  If(LEqual(NDL4, Local0))
  {
    Return(1)
  }
  If(LEqual(NDL5, Local0))
  {
    Return(1)
  }
  If(LEqual(NDL6, Local0))
  {
    Return(1)
  }
  If(LEqual(NDL7, Local0))
  {
    Return(1)
  }
  If(LEqual(NDL8, Local0))
  {
    Return(1)
  }
  Return(0)
}

//
// Include IGD OpRegion/Software SCI interrupt handler which is use by
// the graphics drivers to request data from system BIOS.
//
include("IgdOpRn.ASL")
